Acta Scientiarum Naturalium Universitatis Pekinensis

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Preparation of Spherical CaCO3 Powers

ZHAO Zhenguo, DING Ding   

  1. Department of Chemistry, Peking University, Beijing, 100871
  • Received:1996-03-28 Online:1996-11-20 Published:1996-11-20



  1. 北京大学物理化学研究所,北京,100871

Abstract: The pure spherical CaCO3 powders have been prepared by decomposition of chelates. The experimental results show that the spherical CaCO3 powders were obtained when the ethylenediaminetetraacetic acid(H 4edta)as chelating agent was applied and it concentration was suitable. The large increase in partical size occurs as ageing at higher temperature.

Key words: CaCO3 powder, preparation of powders

关键词: CaCO3粉体, 粉体制备

CLC Number: